<template>
    <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
        <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
  <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>

    </div>
</template>
<script>
// 1.导入echarts
import * as echarts from 'echarts'
import _ from 'lodash'

export default {
    created() {},
    async mounted() {
        // 此阶段页面上的元素已经被渲染完毕了
        var myChart = echarts.init(document.getElementById('main'));

        const {data:res}=await this.$http.get('reports/type/1')
        if(res.meta.status!==200){
            return this.$message.error('获取折线图数据失败')
        }

    // 准备数据和配置项
    const result = _.merge(res.data,this.options)
    //   展示数据
    myChart.setOption(result)
    },
    data() {
        return {
            // 需要合并的数据
            options: {
          title: {
            text: '用户来源'
          },
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'cross',
              label: {
                backgroundColor: '#E9EEF3'
              }
            }
          },
          grid: {
            left: '3%',
            right: '4%',
            bottom: '3%',
            containLabel: true
          },
          xAxis: [
            {
              boundaryGap: false
            }
          ],
          yAxis: [
            {
              type: 'value'
            }
          ]
            }
        }
    },
    methods: {
        
    },
}
</script>
<style lang="less" scoped>

</style>